Articles | Volume 14, issue 1
Geosci. Model Dev., 14, 473–493, 2021
https://doi.org/10.5194/gmd-14-473-2021
Geosci. Model Dev., 14, 473–493, 2021
https://doi.org/10.5194/gmd-14-473-2021

Development and technical paper 25 Jan 2021

Development and technical paper | 25 Jan 2021

Improving dust simulations in WRF-Chem v4.1.3 coupled with the GOCART aerosol module

Alexander Ukhov et al.

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Interactive discussion

Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Peer-review completion

AR: Author's response | RR: Referee report | ED: Editor decision
AR by Alexander Ukhov on behalf of the Authors (09 Aug 2020)  Author's response    Manuscript
ED: Reconsider after major revisions (09 Sep 2020) by Samuel Remy
AR by Alexander Ukhov on behalf of the Authors (11 Oct 2020)  Author's response    Manuscript
ED: Referee Nomination & Report Request started (13 Oct 2020) by Samuel Remy
RR by Anonymous Referee #1 (31 Oct 2020)
RR by Anonymous Referee #3 (31 Oct 2020)
RR by Anonymous Referee #2 (06 Nov 2020)
ED: Publish subject to minor revisions (review by editor) (10 Nov 2020) by Samuel Remy
AR by Alexander Ukhov on behalf of the Authors (19 Nov 2020)  Author's response    Manuscript
ED: Publish subject to minor revisions (review by editor) (04 Dec 2020) by Samuel Remy
AR by Alexander Ukhov on behalf of the Authors (06 Dec 2020)  Author's response    Manuscript
ED: Publish as is (11 Dec 2020) by Samuel Remy
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Short summary
We discuss and evaluate the effects of inconsistencies found in the WRF-Chem code when using the GOCART module. First, PM surface concentrations were miscalculated. Second, dust optical depth was underestimated by 25 %–30 %. Third, an inconsistency in the process of gravitational settling led to the overestimation of dust column loadings by 4 %–6 %, PM10 by 2 %–4 %, and the rate of gravitational dust settling by 5 %–10 %. We also presented diagnostics that can be used to estimate these effects.